Propagating Nymphaea lotus (Red Tiger Lotus)

How to propagate red tiger lotus from its bulb by separating daughter bulbs and runner offsets, replanting them in rich substrate and trimming lily pads to keep submerged growth.

Overview

Nymphaea lotus, the tiger lotus, is a bulb plant found in East Africa and Southeast Asia. It grows from stoloniferous, branched rhizomes (the aquarium 'bulb') that persist through dry seasons and bear leaf scars. In the aquarium it produces leaves under the water surface as well as lily pads that reach the surface, and it can grow relatively quickly once established, even under low light.

Propagation Method

Tiger lotus is propagated from its bulb, not from cuttings. The stoloniferous rhizome sends out runners and forms daughter bulbs and side offsets, which can be separated once they have their own leaves and roots and replanted as new plants. This is division of the bulb's offsets rather than topping a stem.

Step-by-Step

Locate a daughter bulb or side offset growing on a runner from the parent rhizome.
Once it carries its own leaves and roots, gently separate it from the parent.
Plant the offset in rich substrate, leaving the top of the bulb exposed so it does not rot.
Add root tabs near the bulb, since the lotus is a root feeder and grows faster with substrate nutrients.
Expect new leaves to appear within about 7–14 days once the offset is established.

Conditions for Healthy Growth

The tiger lotus is undemanding about light and can thrive even under low light, growing relatively quickly once established. It is a root feeder, so rich substrate and root tabs support strong growth. Its leaves are delicate and are easily damaged, so handle young offsets carefully.

Maintenance

Left alone, the plant sends lily pads to the surface. Regularly trim the surface runners and pads to keep the dramatic underwater foliage compact and colourful, cutting the runner before it reaches the surface. Trimming surface growth redirects energy into the submerged leaves and into producing more offsets.

Common Challenges

Surface lily pads shading the tank when runners are not trimmed back.
A buried or rotting bulb if the top is planted too deep instead of left exposed.
Delicate leaves tearing easily, so newly planted offsets need careful handling.